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gh-115999: Add free-threaded specialization for FOR_ITER (#128798)

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Add free-threaded versions of existing specialization for FOR_ITER (list, tuples, fast range iterators and generators), without significantly affecting their thread-safety. (Iterating over shared lists/tuples/ranges should be fine like before. Reusing iterators between threads is not fine, like before. Sharing generators between threads is a recipe for significant crashes, like before.)
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T. Wouters 2025-03-12 16:21:46 +01:00 • committed by GitHub
parent db27aee2fe
commit de2f7da77d
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13 changed files with 469 additions and 125 deletions
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Python/optimizer_cases.c.h generated
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@ -1458,7 +1458,9 @@
break;
}
case _ITER_NEXT_LIST: {
/* _ITER_NEXT_LIST is not a viable micro-op for tier 2 */
case _ITER_NEXT_LIST_TIER_TWO: {
JitOptSymbol *next;
next = sym_new_not_null(ctx);
stack_pointer[0] = next;